Multi Sentry online three phase to three phase transformer-less UPS

Free transportation to the installation site
Free initial installation and setup
2-year official warranty and 10 years of after-sales service

Multi Sentry online three phase to three phase transformer-less UPS

The Multi Sentry UPS, with a power range of 160 and 200 kVA, is an advanced Uninterruptible Power Supply (UPS) system featuring online double-conversion technology (VFI-SS-111) compliant with the IEC EN 62040-3 standard. This device offers up to 96.5% efficiency, an input power factor of 0.99, and total harmonic distortion (THDi) of less than 2.5% (at 200 kVA), making it ideal for protecting sensitive telecommunications systems and data centers. Its high-standard technical specifications enable it to power various inductive and capacitive loads, including those with high inrush currents such as motors and compressors, without adversely affecting the output voltage. The output power factor of 1 indicates the device's high capability to supply resistive, inductive, and capacitive loads equally. The Multi Sentry features a wide input voltage acceptance range, allowing its rectifier to remain active even at voltage levels as low as 40% of the nominal voltage (at half-load capacity). This feature reduces the frequency of switching to battery mode, prevents unnecessary battery discharge, and enhances system reliability. The battery care system, including single-stage and two-stage charging, temperature compensation, and deep discharge protection, extends the lifespan of sealed lead-acid batteries. This UPS is equipped with a multilingual display, PowerShield³ software for advanced monitoring and communication (RS232, USB, SNMP). The 240×128 pixel LCD display clearly shows input, output, load percentage, and battery charge levels. The UPS operating status and internal components are displayed graphically. A manual bypass switch (Maintenance Bypass) is provided to seamlessly transfer the load from the inverter to the main input power for potential servicing. Its compact design minimizes space requirements, reducing management costs and making it a cost-effective solution for critical infrastructure.

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Features
Build Quality
Value for Price

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* Power:

* Required backup time:

Other:

Parallel kit Extra battery charger IP rating IP30/IP31 Top cable entry Battery temperature sensor

Quantity:

Purchase Steps
Step 1: Needs Assessment and Solution Proposal
Our technical experts begin by understanding the customer’s specific power requirements, operating environment, and long-term goals. Based on this assessment, we recommend the most suitable products and system configurations tailored to the client’s needs.
Step 2: Purchase Request and Quotation Preparation
Once the customer expresses interest in a particular solution, we formally receive their purchase request. In response, we prepare a detailed price quotation covering the proposed products and services.
Step 3: Proforma Invoice Issuance
Following the quotation phase, a proforma invoice is issued for the selected items. This document outlines all financial and logistical details necessary for the customer to proceed with the purchase.
Step 4: Confirmation and Payment Agreement
Upon the customer’s approval of the proforma invoice, both parties finalize the payment terms, including method, schedule, and any applicable conditions. This step confirms mutual agreement and initiates the order process.
Step 5: Procurement and Final Invoice
After confirming the order, our team begins the procurement process for the approved items. Once ready, we issue the final invoice to the customer based on the agreed terms and confirmed specifications.
Step 6: Delivery, Warranty, and Handover
The final step includes preparing the goods for delivery, issuing official warranty documentation, and ensuring all contractual obligations are met. The products are then handed over to the customer in accordance with the agreed timeline and conditions.

Product Originality

At Zener Eng. Co., we understand that today’s smart buyers seek original, high-quality products those manufactured by reputable, well-established companies that invest in research, development, and quality assurance. We fully respect this expectation and are committed to offering only genuine products, with full guarantees of authenticity and performance.
Driven by our core values of honesty and customer-centric service, we go to great lengths to ensure that every product we offer is authentic, officially sourced, and backed by valid warranties. All items are verified with original manufacturer serial numbers, untampered, and legally imported into the country.
The equipment and devices we supply are fully covered under warranty. In the event of any issue during the warranty period, our customers benefit from full after-sales support and technical service provided by Zener Engineering Company.
Customer satisfaction is a fundamental organizational goal for us. We constantly measure our success in this area through feedback and experiences shared by our valued clients.
Unfortunately, it is not uncommon for buyers to encounter sellers who promise originality and official warranties, only to discover when problems arise that the product was not genuine or the warranty was invalid. This leads to frustration and a lack of trust in the purchasing process.
At Zener, one of our key missions is to eliminate such concerns by creating a sense of trust and peace of mind for our customers. We want you to feel confident in every purchase you make with us. To that end, we are always ready to provide official documentation verifying the authenticity and origin of any product upon request.

Warranty Terms

Support Services

Power Estimation

UPS/Model

Select Model

UPS/Input

Nominal Voltage

380, 400, 415 VAC three-phase + N

Voltage Range

400 VAC ±20% @ full load

Frequency Range

40 to 72 Hz

Power Factor

0.99 @ full load

Voltage Distortion (THDi)

- select a model from top -

Inlet Type

terminal

UPS/Bypass

Voltage Range

380, 400, 415 VAC three-phase + N, tolerance 180 / 264 (selectable)

Frequency Range

50 or 60 Hz, tolerance ±5% selectable

UPS/Output

Power

- select a model from top -

Nominal Voltage

380, 400, 415 VAC three-phase + N (selectable)

Voltage Variation

static variation ±1%, dynamic variation ±3%

Frequency Range

50 or 60 Hz, stability during battery operation 0.01%

Power Factor

Voltage Distortion (THDv)

≤ 1% with resistive linear load, ≤ 3% with non-linear load

Outlet Type

terminal

Wave form

sinusoidal

Efficiency

96.5% in online mode, up to 99% in smart active mode

UPS/Battery

Battery Type

external

Qty × Voltage

40 × 12 VDC = 480 VDC

UPS/Protections

Overload

125% for 10 min, 150% for 1 min

Protections

over-current, short-circuit, over-voltage, under-voltage, over-temperature, excessive low battery

Alarms

line failure, battery low, over-load, fault conditions

UPS/Physical

Dimensions (W × D × H)

840 × 1035 × 1900 mm

Weight

- select a model from top -

UPS/Environment

Working Temperature

ambient: min 0 °C, max 40 °C, recommended for battery life: 20 to 25 °C

Working Humidity

max 95% non-condensing

Altitude Level

1000 m @ nominal power (Derating 1% power for every 100 m above 1000 m, max 6000 m)

Noise Level

max 50 dBA @ 1 m in smart active mode (±2 dBA)

UPS/Others

Communications

3 slots for communications interface, USB, RS232

Standards

european directives: LV 2014/35/EU low voltage directive EMC 2014/30/EU electromagnetic compatibility directive standards: safety IEC EN 62040-1; EMC IEC EN 62040-2; RoHS compliant classification in accordance with IEC EN 62040-3 (voltage frequency independent) VFI - SS - 111

What is the efficiency of the Multi Sentry UPS in online mode?
The Multi Sentry UPS achieves a maximum efficiency of 96.5% in online mode, reducing energy loss and heat generation. This high efficiency helps lower electricity and cooling costs, particularly in environments operating 24/7. This feature makes it ideal for facilities seeking sustainability and energy savings without compromising performance.

Is the Multi Sentry suitable for non-linear or IT loads?
Yes, this UPS is specifically designed to handle non-linear loads with high crest factors, common in IT and industrial systems. It maintains voltage stability and waveform integrity even with fluctuating or high-harmonic loads, making it ideal for protecting sensitive equipment and servers.

Multi Sentry UPS
pdf | Oct. 24 2025 | brochure | FA